eitsupi commented on issue #37529:
URL: https://github.com/apache/arrow/issues/37529#issuecomment-1704045178
Hi, I think `mutate_at` has been superseded by `across` and `across` is
supported by the `arrow` package.
``` r
cols_to_change <- c("disp", "hp")
mtcars |>
arrow::as_arrow_table() |>
dplyr::mutate(dplyr::across(all_of(cols_to_change), ~ dplyr::if_else(.x >
200, "Yes", "No"))) |>
dplyr::collect()
#> # A tibble: 32 × 11
#> mpg cyl disp hp drat wt qsec vs am gear carb
#> <dbl> <dbl> <chr> <chr> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl>
#> 1 21 6 No No 3.9 2.62 16.5 0 1 4 4
#> 2 21 6 No No 3.9 2.88 17.0 0 1 4 4
#> 3 22.8 4 No No 3.85 2.32 18.6 1 1 4 1
#> 4 21.4 6 Yes No 3.08 3.22 19.4 1 0 3 1
#> 5 18.7 8 Yes No 3.15 3.44 17.0 0 0 3 2
#> 6 18.1 6 Yes No 2.76 3.46 20.2 1 0 3 1
#> 7 14.3 8 Yes Yes 3.21 3.57 15.8 0 0 3 4
#> 8 24.4 4 No No 3.69 3.19 20 1 0 4 2
#> 9 22.8 4 No No 3.92 3.15 22.9 1 0 4 2
#> 10 19.2 6 No No 3.92 3.44 18.3 1 0 4 4
#> # ℹ 22 more rows
```
<sup>Created on 2023-09-03 with [reprex
v2.0.2](https://reprex.tidyverse.org)</sup>
The dplyr document <https://dplyr.tidyverse.org/reference/mutate_all.html>
says:
> Scoped verbs (_if, _at, _all) have been superseded by the use of
[pick()](https://dplyr.tidyverse.org/reference/pick.html) or
[across()](https://dplyr.tidyverse.org/reference/across.html) in an existing
verb. See
[vignette("colwise")](https://dplyr.tidyverse.org/articles/colwise.html) for
details.
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